. >> reporter: well secretary of defense leon panetta was in london meeting cameron, a u.s. plane was evacuating wounded hostages, including at least one american, to a military hospital in germany. >> terrorists should be on notice that they will find no sanctuary, no refuge, not in algeria, not in north africa not anywhere. >> reporter: and the kidnappers are now reportedly offering a prisoner swap. they say they'll release two americans they say they're still holding if the u.s. releases two prisoners it's holding in u.s. prisons on terror convictions. and, of course, scott, they're still threatening further attacks. >> pelley: mark, thanks very much. the leader of that terror group that mark just told us about mokhtar belmokhtar has an entourage that calls him the prince but that's just one of his aliases and we asked david martin to find out more about him. >> mokhtar belmokhtar, a.k.a. one eye, because he lost an eye fighting in afghanistan. a.k.a. the marlborough man because he made a living smuggling cigarettes. no westerner knows him better than former canadian dipl